Tyre Recycling - The International Nightmare of Scrap tyres - 0 views
started by Cary Witt on 26 Apr 12
started by Cary Witt on 26 Apr 12
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started by Cary Witt on 26 Apr 12
There's no question that Scrap tires presents one of the greatest environmental threats to our entire planet. It's thought, for instance, that each year a worrying 300 million tyres are dumped - and that's solely in the USA. Worldwide, it's today stated that there's a scrap tyre for everyone on the earth.
As if the unsightly sight of thousands of dumped tires on rubbish sites and industrial estates it is bad enough, the problem has terrible environmental implications because rubber tires aren't biodegradable.
Due to this, tyre recycling has become vitally important globally. And this multi-million-dollar market is likely to turn out to be substantially more vital in years to come.
The top method of 'recycling' tyres for a long time would have been to burn them, however this caused huge environmental problems too, together with dangerous and toxic smoke and fumes. The good news, however, is that right now tyre recycling is being conducted in a far more economical and scientific way because of modern new methods.
Currently tires are reconstituted as rubber shoes, road safety barriers, basketball court surfaces and even floating sea pontoons. Yet undoubtedly probably the most environmentally effective tire recycling method is a technique called tire pyrolysis.
Tire pyrolysis is a process through which Scrap tyres can be converted to a variety of products, including low grade carbon and a solid residue known as char, in addition to fuel gas and oils. The process is incredibly simple.
Scrap tires are either placed whole or shredded into a specific, oxygen-free reactor vessel where there' re heated at high temperatures. The rubber polymers in the tires are softened down eventually vaporizing. These vapors may be burned directly as an power source or even condensed into an oil which can also be used as an actual fuel. Molecules that cannot condensed down any more remain in a gas form which can be used as a fuel.
Not all the tyre will disappear and around 40 per cent of its weight shall be converted to solid-state materials, either as char or even low grade carbon. A major bonus from an environmental viewpoint is this involves virtually no emissions or waste.
It is a highly technical job requiring skilled and also qualified professionals. Pyrolysis can take anything between five minutes and five hours to be fully accomplished, depending on the kind of tire being broken down and the type of method that is actually being performed inside the chamber. During this period, the temperature within the vacuum chamber can range from 400 to 900 degrees c and it can take up to 24 hours for the solid state charcoal and char to eventually cool down and then harden correctly.
Considering the increase of China and India and their massive economies, it is anticipated the problem associated with Scrap tires will become even higher in the forthcoming decades. So there's no doubt that green and cost-efficient tire recycling procedures like tyre pyrolysis are going to grow increasingly important to the actual environment as the 21st century advances.
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